公开(公告)号：US5061665A

公开(公告)日：1991-10-29

申请号：US462095

申请日：1990-01-08

申请人： Ichiro Seki ,  Akihiro Kano ,  Toshiki Hasegawa ,  Minoru Abe ,  Isao Isa

发明人： Ichiro Seki ,  Akihiro Kano ,  Toshiki Hasegawa ,  Minoru Abe ,  Isao Isa

IPC分类号： C04B35/484 ,  C09K3/14

CPC分类号： C09K3/1427 ,  C04B35/484

摘要： Improved alumina-zirconia composite sintered materials with sufficient high mechanical strength and thermal shock resistance as well as excellent hardwearing resistance are made by mixing, heating and melting zirconia and alumina, then the produced melt was quenched, and the resulting solid was ground and milled while adding thereto at least one compound of ceria and/or titania, to an average grain size of from about 0.5 to about 1.5 .mu.m, and subjected the resulting powder to molding and sintering at a temperature of from 1450.degree. to about 1600.degree. C., said zirconia, ceria and titania being employed in the amount of about 10-20%, about 3-7%, and about 15-25% by weight, respectively, plus the balance of alumina. Said sintered materials are useful for employment in structural materials, refractorial materials, erosion resistance materials, cutting tool materials, grinding and polishing materials, etc.

摘要翻译： 通过混合，加热和熔融氧化锆和氧化铝制备了具有足够高的机械强度和耐热冲击性以及优异的耐耐磨性的改进的氧化铝 - 氧化锆复合烧结材料，然后将所生产的熔体淬火，并将所得固体研磨和研磨，同时 将至少一种二氧化铈和/或二氧化钛的化合物加入至约0.5至约1.5μm的平均粒度，并将所得粉末在1450℃至约1600℃的温度下进行成型和烧结。 所述氧化锆，二氧化铈和二氧化钛的用量分别为约10-20％，约3-7％和约15-25％（重量），加上余量的氧化铝。 所述烧结材料可用于结构材料，折射材料，耐腐蚀材料，切削工具材料，研磨抛光材料等。

公开(公告)号：US4829028A

公开(公告)日：1989-05-09

申请号：US136514

申请日：1987-12-22

申请人： Ichiro Seki ,  Morinosuke Kano ,  Akihiko Fujii ,  Akihiro Kano ,  Isao Isa

发明人： Ichiro Seki ,  Morinosuke Kano ,  Akihiko Fujii ,  Akihiro Kano ,  Isao Isa

IPC分类号： C01G25/00 ,  C04B35/119 ,  C04B35/653

CPC分类号： C04B35/653 ,  C04B35/119

摘要： Alumina-zirconia composite sintered materials having sufficient high-temperature strength and thermal shock resistance as well as excellent mechanical strength are made by mixing Bayer alumina and/or bauxite as an alumina and baddeleyite and/or zircon sand as a zirconia material in amounts of 50 to 95% by weight of alumina, the balance being zirconia, respectively, subjecting the mixture to heating, melting and quenching, grinding the resulting solid to an average grain size of 10 .mu.m or smaller, and subjecting the resulting powder to molding and sintering.

摘要翻译： 将具有足够的高温强度和耐热冲击性以及优异的机械强度的氧化铝 - 氧化锆复合烧结材料通过将作为氧化铝的拜耳氧化铝和/或铝土矿和/或锆石砂作为氧化锆材料以50的量混合 至95重量％的氧化铝，余量为氧化锆，使混合物进行加热，熔融和淬火，将所得固体研磨至10μm以下的平均粒径，并将所得粉末进行成型和烧结 。